115386839 has 2 divisors, whose sum is σ = 115386840. Its totient is φ = 115386838.

The previous prime is 115386811. The next prime is 115386841. The reversal of 115386839 is 938683511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115386839 is a prime.

It is a super-2 number, since 2×115386839² = 26628245228823842, which contains 22 as substring.

Together with 115386841, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115386839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115386539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57693419 + 57693420.

It is an arithmetic number, because the mean of its divisors is an integer number (57693420).

Almost surely, 2^115386839 is an apocalyptic number.

115386839 is a deficient number, since it is larger than the sum of its proper divisors (1).

115386839 is an equidigital number, since it uses as much as digits as its factorization.

115386839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 115386839 is about 10741.8266137562. The cubic root of 115386839 is about 486.8390713895.

The spelling of 115386839 in words is "one hundred fifteen million, three hundred eighty-six thousand, eight hundred thirty-nine".